exaU2I - Multi-Channel Asynchronous USB to I2S Interface

[exa065]

Originally Posted by KOON3876

Thank you,
Console: looks like stopped at 2008.
ableton: expensive..
foo_vst: oh, it can not contain multiple instance of same VST.
Reaper 32bit: Thanks I can see exaU2I ASIO DB. but I can not select any input, when exaU2I driver is selected.
maybe I should keep current player-VAC-Reaper-VAC-exaU2I configuration.

Attached "pass-through" VST source code. (I will add filter function here)

Originally Posted by KOON3876

Console: looks like stopped at 2008.

Can you explain?

foo_vst: oh, it can not contain multiple instance of same VST.

Can you package everything in one VST instance? Also you can use EffectChainer 1.0.2: http://www.acondigital.com/software/...ainer102us.exe

Reaper 32bit: Thanks I can see exaU2I ASIO DB. but I can not select any input, when exaU2I driver is selected.

This is because exaU2I has no inputs. You can use Rearoute in Reaper, and connect Rearoute output channels to exaU2I and Rearoute inputs to another device.

maybe I should keep current player-VAC-Reaper-VAC-exaU2I configuration.

I would avoid mixing VAC and ASIO. There must be a simple solution. The best think is to package everything in one VST instance.

[KOON3876]

Hi exa065, thank you for information for my strange configuration.
(just want straight FIR channel divider, simplified)

Originally Posted by exa065

Can you explain?

Latest version is 06/06/2008 1.6.2 beta and no updates.

Originally Posted by exa065

Can you package everything in one VST instance?

I want to separate each filter, then use them in parallel (Low / Mid / High).
Then they just have only 2 parameter, and it is expandable to 4 way (or more in future), or easy to make compact 2 way. I hate my current source code because it contains 4 ways, it makes code confusing.

Originally Posted by exa065

Also you can use EffectChainer 1.0.2: http://www.acondigital.com/software/...ainer102us.exe

It looks like "chain".. I need bus and multiple channel output.

Originally Posted by exa065

You can use Rearoute in Reaper, and connect Rearoute output channels to exaU2I and Rearoute inputs to another device.

I can see Rearoute but not find where to configure Rearoute, (I'm using Reaper 4.02, cocoswiki looks like old information, Nov 9, 2007). any screen shot? and is there any difference between routing by VAC or Rearoute.. does Rearoute only works as ASIO router?

regards,

[exa065]

Originally Posted by KOON3876

I want to separate each filter, then use them in parallel (Low / Mid / High).
Then they just have only 2 parameter, and it is expandable to 4 way (or more in future), or easy to make compact 2 way. I hate my current source code because it contains 4 ways, it makes code confusing.

You can build the project 3 times under a different name/GUID and than you will have 3 different VST fillers instead of 3 instances of one. Actually you can share the same source code files and have 3 different projects under one Visual Studio solution. This will allow you to build 3 targets with one build.

Originally Posted by KOON3876

I can see Rearoute but not find where to configure Rearoute, (I'm using Reaper 4.02, cocoswiki looks like old information, Nov 9, 2007). any screen shot?

I've used it long time ago and I find it overcomplicated. I think you need to create a track, and than use the ins and the outs of the track with Reroute channels.

Originally Posted by KOON3876

and is there any difference between routing by VAC or Rearoute..

Routing with VAC will make it harder to reconfigure sample rates. ASIO is bitperfect, VAC relies on the OS sound system.

regards,[/QUOTE]

[KOON3876]

Thank you! I could make software channel divider with Reaper and exaU2I.
I wondered "Where is the ReaRoute??" and, this is an ASIO driver generated by Reaper, exists and works with Reaper, works as copy only ASIO pipe, from-to outside Reaper.

How to configure "Fully ASIO" PC Audio which has software FIR channel divider, by Reaper4 and exaU2I
installation
(1) install ASIO capable audio player, like foobar + foo_asio
(2) install Reaper, with ReaRoute. Reaper4 personal license is $60.
(3) install exaU2I.

Player Configuration
(4) Player's output is ASIO, ReaRoute, "L / R" -> "ReaRoute 1 / 2"

Reaper Configuration
(5) Reaper's Option - Preference - Device is ASIO, exaU2I ASIO DB, 8 ch.

Generating VST Tracks in Reaper
(6) Reaper's track area, right click and "Insert virtual instrument on new track..."
(7) Select VST: ReaFir
(8) if you want 3 way, do (6) (7) 3 times total.

Configure Track Connection
(9) press track's "Input: " selection. assign ReaRoute 1 + ReaRoute 2, for all tracks. (LOW, MID, HIGH has same input)
(10) press track's "I/O". disable Master/Parent send. for all tracks.
(11) "Add new hardware Output..." then select "Out 1 / Out 2" for LOW track.
(12) select "Out 3 / Out 4" for MID, "Out 5 / Out 6" for High.
now you have 2 in 6 out connection.

Configure FIR Filter
(13) press track's "FX". modify frequency curve, for LOW, MID, HIGH.

Optional
(14) If you want you can add more VST like spectrum monitor, delay, EQ etc. this is topic inside Reaper and VST.

exa065, If you want I can post whole screenshot of this procedure. maybe some people will want this how-to. (so they want exaU2I, instead of 2 channel USB-I2S)

[exa065]

Originally Posted by KOON3876

Thank you! I could make software channel divider with Reaper and exaU2I.

exa065, If you want I can post whole screenshot of this procedure.

Please do! I will also be happy to have the procedure published on the Guides section of the exaDevices blog.

Best,

exa065

[KOON3876]

Attached, signal flow from player , ReaRoute, Reaper, exaU2I.

[zoka959]

Just qurious,
Can one use EXA U2I as digital input to BEHRINGER DCX2496 and so avoid the use of
existing CS8420.
Zoran

[rsdio]

Originally Posted by zoka959

Can one use EXA U2I as digital input to BEHRINGER DCX2496 and so avoid the use of existing CS8420.

The exaU2I outputs I2S signals, and is basically designed to connect to a raw circuit board with DAC. I am not aware of any 'normal' audio products with an I2S input; there might be some, but the DCX2496 certainly does not have an I2S input on the back.

As for the CS8420, I cannot determine from the Owner's Manual where this appears in the circuit. It's not in the block diagram. It seems most likely that if you wanted to change anything about the CS8420, you would probably be forced to cut some traces on the circuit board. If you did that, you could bypass the CS8420 by connecting its inputs to its outputs, while making sure that the CS8420 outputs were no longer connected to the circuit (the inputs don't matter unless they load the lines). It seems like the DCX2496 should allow a menu to bypass the CS8420, but I could not find anything.

Once you've modified the DCX2496 PCB to disconnect the CS8420 output pins, you might be able to connect the exaU2I, but I have not personally confirmed that the signals are compatible.

[Lgrau]

Hi this a long thread so I only read a little part of it.

I'm wondering if it has been tested with Thuneau Allocator?
DSP Crossover for PC. Frequency Allocator.

[exa065]

Originally Posted by Lgrau

Hi this a long thread so I only read a little part of it.

I'm wondering if it has been tested with Thuneau Allocator?
DSP Crossover for PC. Frequency Allocator.

Yes, here is the link: Using Allocator with exaU2I and Foobar 2000.